Pumping mechanism.



G. C. WICKWIEE.

PUMPING MECHANISM.

AYPLIOATION mum MAR 1, 1909.

Patented Mar. 22, 1910.

2 SHEETS-SHEET 1.

nwufoz;

dim

G. G. WICKWIRB.

PUMPING MECHANISM.

nnwumx rum) BAR 1. 190a.

Patented Mar.22,'1910.

2 SHEETS-SHEET 2.

mnntoz:

CHARLES C. WICKWIRE, F CORTLAND, NEW YORK.

PUMPING IVIECEANISIGI.

952,594. Specifimfiw of Letters Eutented Mar. 22, 1910.

Application filed Marc-l1 l. 1909. Serial No. 480.498.

i 1 To an whom it may (Olin/I4. the utiiulfis tops depressed. and (ZOflnillllQlltlY at Corllund inthc county of Cortland and around the pivot rod 6 and having one end rotate or he: l'ork, have llli'elllcfl certain bearing downwardly upon the. bellows tons new and useiul improvements in Pumping and the other end bear ng: downwardlv on Mecl nuusm, of which the following is a Q the frame at the opposite ide of the pivot spccilicnnon. rod. It it be for on 139311 desirable, sepa- My present invention relates to a pumprate pivot rods may be provided for each ing meeuan ism which particularly intendbellows. so that. the relative position of the ed for use 111 connection with suction cleantreadie may be arranged conveniently. The ingflevlces of that general type in which opening und 3 mentioned as formed in air drawn in at a nozzle so as to pick up the basetozml 1 are so located as to lie under adjacent-dust, then pas -s through a dust the {readies 9 and 10, and thus allow a separator where the dustis retained and deeper depression of the trendlcs for a given finally passes through pumping mechanism height of the apparatus.

back to the atmosphere. As illustrated particularly in Fig. 2 each The invention resides in a noval construcbellows top is provided with an outwardly (1011 and combination of parts whereby I opening flap valve i2, while within the bel- Secure a foot operated bellows easily o erlows chambers are inwardly opening valves ate'l. simple and strong in construction and 13. These, valves 1? admit air from the easily carried about. It is suited to any ducts It and 15. one for (ElCll valve, leading purpose where such a pumping mechanism from a main duct l These ducts 14, 15

1s dcsrrzblgl ut 1 illustrate it as applied to, and if; I prefer to form by boring through 83 a suction cleaning m hin th t b the the base-boaml 1. the wood of the baseboard use to which I propose to put it, In conforming the walls of the ducts. but an equivneeiion with the pump I illustrate a dust. uleut s \'steix1of piping might housed. As a sepzuating device which is described and convenient method of atmehingtthe duct 16 claimed in myapplicntion Serial XQ.504:816, to the device from-which air is to be ex- 85 filed June 28, 1909. haustr-d, in this case the dust separator drum The pumping device will be described in 21, I make use of an elbow consisting of a connection withthe accompanying drawwooden block with suitably bored channels ings, wherein, carrying a nipple 18. A piece of rubber Figure 1, is a perspective .view of a cleanhose 19 is used to connect the nipple 18 to 9D device showing my improved pumping nipple '20, entering the separator drum 21. mechanism; Fig. 2. is a sectional elevation A similar connection might be used to conon the line b-Z of Fignl; and Fig. 3 is a neat the pumping mechanism to any other plan view of the apparatus, certain parts device from which air is to be exhausted.

being omitted or shown in section for pm The details of the dust separator 21 will poses 'of 'clearness. not be described, but. as obvious from the Like numerals refer to like parts through drawings, the separator 21 is connected by the drawings. a flex ble tube 31 to the tubular handle 32 Referring to th dra i gs, 1 i a frame of the cleaning nozzle which last is of or baseboard on which the apparatus is the usual type. The path of the air is then 10:) mounted. This frame I prefer to make of through the nozzle. tube and separator in wood and of the form shown, the openings 2 the order stated, then through the duct 16 to and 3 being provided for lightness and for the bellows and back to the atmosphere other purposes, which willlater be explained. Q through the valves 12. i A Rigidly attached to this baseboard are the i The method of operating the pumping brackets 5 carrying the pivot rod 6 on which 5 mechanism will now be described; are independently hinge-d the bellows tops The operator stands on the treadles 9 and .7 and 8. These bellows tops which have an 10. and by treading thereon sets the lr-llows extension or pro'ection past said pivot rod i tops into vibration. The fact the tbel- 6, forming trea les 9 and 10, so that the lows tops are hinged independ tl or each depression of a treadle causes the elevation other allows the operator to n. =.m any so- Be it known that l. linen-1s (.1. Von-f wine a citizen of the United States, residing the treudli-s in an elevated position. springs j 11 are prmidt-d, one for each bellows, coiled of a bellows top and vice versa. To keep i queme of movements which he may prefer,

or to use only one bellows at will, and by permitting changes in the movement, enables him to pump longer periods withoutbecoming excessively tired. Bellows mechanism have hitherto been known in which the operator stood upon the bellows tops and operated the bellows by treading upon said bellows tops, but in all such devices the mechanism has been such that the depression of one bellows top caused the elevation of the other, and the motion of the tops was therefore constrained anc subject to no variation except in the speed. The resulting motion is unnatural and tiring and the po sition of the feet not so satisfactory as may be had by the use of my construction. I therefore lay great stress on the independence of the treadles in my structure and on my ability to place them in any position relative to each other which ma seem desirable. It will also be noted that the form of frame adopted for the mechanism allows the convenient attachment of the dust separator, so that the whole forms a compact mechanism readily portable and easily stored. It is also obvious that the form'of the bellows allows one person to do the pumping with his feet, while using his hands to manipulate the cleaning nozzle or such other devices as might require his attention.

Having thus described my invention, what I claim is:-

1. A. pumping mechanism comprising in combination, a base frame; fulcra on the frame individually operable bellows mount-- ed on the fulcra at opposite sides thereof;

treadles projecting past the fulcra in o posite directions from their respective be ows and forming extensions thereof, said treadles being out of alinment with each other; and springs to hold said bellows in a closed position.

2. In a pumping mechanisnuthe combination of a base having a pair of non-alined openings formed therein and adapted to rest fiat upon a floor; a, treadle located over each opening; and bellows arranged upon the top oi the base opposite each treadle, and open -atively connected thereto.

3. In a pumping mechanism the combination with a base a pair of non-alined treadles fulcrumed upon the top of said base and extending in opposite directions from their fulcra. the base being formed with an opening beneath each treadle; and a bellows arranged upon the base opposite each treadle, the top of each bellows being rigidly connected to a treadle.

4. In a pumping mechanism the combination of a base; a pair of non-alined treadles fulcru ned upon the top of said base and extending in opposite directions from their fulcra; and a bellows arranged upon the base opposite each, treadleythe top of each bellows being rigidly connected to a treadle.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

5 CHARLES C. \VICKVVIRE. \Vitnesses HERBERT B. DARLING, CHESTER F \Vrcrtwmn. 

